1373345145 has 32 divisors (see below), whose sum is σ = 2444653440. Its totient is φ = 731505600.

The previous prime is 1373345081. The next prime is 1373345147. The reversal of 1373345145 is 5415433731.

1373345145 is a `hidden beast` number, since 137 + 3 + 3 + 4 + 514 + 5 = 666.

It is not a de Polignac number, because 1373345145 - 2⁶ = 1373345081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1373345147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105495 + ... + 117795.

It is an arithmetic number, because the mean of its divisors is an integer number (76395420).

Almost surely, 2^1373345145 is an apocalyptic number.

1373345145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1373345145 is a deficient number, since it is larger than the sum of its proper divisors (1071308295).

1373345145 is a wasteful number, since it uses less digits than its factorization.

1373345145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13142 (or 13136 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 1373345145 is about 37058.6716572518. The cubic root of 1373345145 is about 1111.5437614012.

Adding to 1373345145 its reverse (5415433731), we get a palindrome (6788778876).

The spelling of 1373345145 in words is "one billion, three hundred seventy-three million, three hundred forty-five thousand, one hundred forty-five".